Patents by Inventor Eli DAGAN
Eli DAGAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11964068Abstract: Embodiments of the present disclosure relate to an oxygen cleaning chamber with UV radiation generator temperature control and a method of atomic oxygen cleaning a substrate. The atomic oxygen cleaning chamber includes a process chamber and a cooling chamber coupled to the process chamber and a divider sealingly separating the process chamber from the cooling chamber. An ultraviolet (UV) radiation generator is disposed in the cooling chamber and provides UV radiation through the divider into the process chamber. A gas distribution assembly distributes ozone over an upper surface of a pedestal in the process chamber and a coolant distribution assembly distributes cooling gas into the cooling chamber to cool the UV radiation generator. By actively cooling the UV radiation generator, a higher intensity UV radiation at a stable wavelength is produced, i.e., without wavelength drift normally associated with high power UV radiation generator outputs.Type: GrantFiled: March 12, 2021Date of Patent: April 23, 2024Assignee: APPLIED MATERIALS, INC.Inventors: Banqiu Wu, Eli Dagan
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Patent number: 11908679Abstract: Embodiments described herein relate to oxygen cleaning chambers and a method of atomic oxygen cleaning a substrate. The oxygen cleaning chambers and method of atomic oxygen cleaning a substrate provide for generation of atomic oxygen in situ to oxidize materials on the surfaces of the substrate. The atomic oxygen cleaning chamber includes a chamber body, a chamber lid, a processing volume defined by the chamber body and the chamber lid, an UV radiation generator including one or more UV radiation sources, a pedestal disposed in the processing volume, and a gas distribution assembly. The pedestal has a processing position corresponding to a distance from the UV radiation generator to an upper surface of the pedestal. The gas distribution assembly is configured to be connected to an ozone generator to distribute ozone over the upper surface of the pedestal.Type: GrantFiled: August 30, 2019Date of Patent: February 20, 2024Assignee: Applied Materials, Inc.Inventors: Banqiu Wu, Eli Dagan
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Patent number: 11467508Abstract: Embodiments of the present disclosure generally include apparatus and methods for removing adhesive residues from a surface of a lithography mask. In particular, the processing systems described herein provide for the delivery of a solvent to a discrete plurality of locations on the surface of the lithography mask to facilitate the removal of adhesive residue therefrom. In one embodiment, a method of processing a substrate includes positioning the substrate on a substrate support of a processing system, sealing individual ones of a plurality of cleaning units to a surface of the substrate at a corresponding plurality of locations, heating a cleaning fluid to a temperature between about 50° C. and about 150° C., flowing the cleaning fluid to, and thereafter, from, the plurality of cleaning units, and exposing the surface of the substrate to the cleaning fluid at the plurality of locations.Type: GrantFiled: June 21, 2019Date of Patent: October 11, 2022Assignee: APPLIED MATERIALS, INC.Inventors: Banqiu Wu, Eli Dagan
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Publication number: 20220288259Abstract: Embodiments of the present disclosure relate to an oxygen cleaning chamber with UV radiation generator temperature control and a method of atomic oxygen cleaning a substrate. The atomic oxygen cleaning chamber includes a process chamber and a cooling chamber coupled to the process chamber and a divider sealingly separating the process chamber from the cooling chamber. An ultraviolet (UV) radiation generator is disposed in the cooling chamber and provides UV radiation through the divider into the process chamber. A gas distribution assembly distributes ozone over an upper surface of a pedestal in the process chamber and a coolant distribution assembly distributes cooling gas into the cooling chamber to cool the UV radiation generator. By actively cooling the UV radiation generator, a higher intensity UV radiation at a stable wavelength is produced, i.e., without wavelength drift normally associated with high power UV radiation generator outputs.Type: ApplicationFiled: March 12, 2021Publication date: September 15, 2022Inventors: Banqiu WU, Eli DAGAN
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Patent number: 11114350Abstract: Methods and apparatus for removing a photoresist layer from a photomask substrate are provided. In one example, a method for removing a photoresist layer from a substrate in a chamber includes generating a first plasma including first radicals from a first gas mixture in a processing chamber, exposing a portion of a photoresist layer on a substrate to the first radicals to remove the portion of the photoresist layer from the substrate, generating a second plasma including second radicals from a second gas mixture, wherein the second radicals have a different composition than the first radicals, and exposing another portion of photoresist layer to the second radicals to remove the second portion of the photoresist layer.Type: GrantFiled: June 26, 2019Date of Patent: September 7, 2021Assignee: Applied Materials, Inc.Inventors: Banqiu Wu, Khalid Makhamreh, Eli Dagan
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Patent number: 11054746Abstract: Generally, examples described herein relate to systems and methods for processing a substrate, and more particularly, for removing an edge bead or other source of contamination from an edge of a substrate. An example is a processing system including a chamber, a substrate handler within the chamber, and a radiation generator within the chamber. The substrate handler is configured to secure a substrate. The substrate handler is operable to position an edge surface of the substrate such that radiation propagating from the radiation generator is directed to the edge surface of the substrate, and operable to position a periphery region of a deposit surface of the substrate that is perpendicular to and along the edge surface such that radiation propagating from the radiation generator is directed to the periphery region.Type: GrantFiled: August 30, 2019Date of Patent: July 6, 2021Assignee: Applied Materials, Inc.Inventors: Banqiu Wu, Eli Dagan
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Publication number: 20210185793Abstract: Embodiments of the present disclosure generally provide apparatus and methods for removing an adhesive material from a photomask. In one embodiment, an apparatus for processing a photomask includes an enclosure, a substrate support assembly disposed in the enclosure, and a dielectric barrier discharge (DBD) plasma generator disposed above the substrate support assembly, wherein the dielectric barrier discharge plasma generator further comprises a first electrode, a second electrode, wherein the first and the second electrodes are vertically aligned and in parallel, a dielectric barrier positioned between the first electrode and the second electrode, and a discharge space defined between the dielectric barrier and the second electrode.Type: ApplicationFiled: December 13, 2019Publication date: June 17, 2021Inventors: Banqiu WU, Khalid MAKHAMREH, Eli DAGAN
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Patent number: 10962889Abstract: Embodiments of the present disclosure generally relate to methods and apparatus for preparing a photomask for a lithography process. In one embodiment, a curing chamber is disclosed that includes an elevator adapted to receive a plurality of holder units. Each of the holder units comprise a holder, a clamp holding a photomask, one or more studs coupled to the photomask by an adhesive, and a spring coupled to each of the one or more studs.Type: GrantFiled: November 15, 2019Date of Patent: March 30, 2021Assignee: APPLIED MATERIALS, INC.Inventors: Banqiu Wu, Eli Dagan, Khalid Makhamreh, Bruce J. Fender
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Patent number: 10933624Abstract: Embodiments described herein generally relate to an apparatus and methods for removing a glue residue from a photomask. The glue residue may be exposed when a pellicle is removed from the photomask. Before a new pellicle can be adhered to the photomask, the glue residue may be removed. To remove the glue residue, a laser beam may be projected through a lens and focused on a surface of the glue residue. The glue residue may be ablated from the photomask by the laser beam.Type: GrantFiled: May 28, 2020Date of Patent: March 2, 2021Assignee: Applied Materials, Inc.Inventors: Banqiu Wu, Eli Dagan
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Patent number: 10928724Abstract: Embodiments of the present disclosure generally provide apparatus and methods for removing an attachment feature utilized to hold a pellicle from a photomask. In one embodiment, an attachment feature removal apparatus for processing a photomask includes an attachment feature puller comprising an actuator, a clamp coupled to the actuator, the clamp adapted to grip an attachment feature, and a coil assembly disposed adjacent to the attachment feature.Type: GrantFiled: October 23, 2019Date of Patent: February 23, 2021Assignee: Applied Materials, Inc.Inventors: Banqiu Wu, Eli Dagan, Khalid Makhamreh, Bruce J. Fender
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Publication number: 20200328128Abstract: Methods and apparatus for removing a photoresist layer from a photomask substrate are provided. In one example, a method for removing a photoresist layer from a substrate in a chamber includes generating a first plasma including first radicals from a first gas mixture in a processing chamber, exposing a portion of a photoresist layer on a substrate to the first radicals to remove the portion of the photoresist layer from the substrate, generating a second plasma including second radicals from a second gas mixture, wherein the second radicals have a different composition than the first radicals, and exposing another portion of photoresist layer to the second radicals to remove the second portion of the photoresist layer.Type: ApplicationFiled: June 26, 2019Publication date: October 15, 2020Inventors: Banqiu WU, Khalid MAKHAMREH, Eli DAGAN
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Patent number: 10802392Abstract: Embodiments described herein relate to apparatus and methods for removing one or more films from a photomask to create a black border and one or more pellicle anchor areas thereon. A photomask substrate is exposed by removing the one or more films in the black border and pellicle anchor areas. The black border prevents a pattern on the photomask from overlapping a pattern on a substrate being processed. To create the black border and pellicle anchor areas, a laser beam is projected through a lens and focused on a surface of the films. The films are ablated by the laser beam without damaging the photomask substrate.Type: GrantFiled: July 12, 2019Date of Patent: October 13, 2020Assignee: Applied Materials, Inc.Inventors: Banqiu Wu, Eli Dagan
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Publication number: 20200290339Abstract: Embodiments described herein generally relate to an apparatus and methods for removing a glue residue from a photomask. The glue residue may be exposed when a pellicle is removed from the photomask. Before a new pellicle can be adhered to the photomask, the glue residue may be removed. To remove the glue residue, a laser beam may be projected through a lens and focused on a surface of the glue residue. The glue residue may be ablated from the photomask by the laser beam.Type: ApplicationFiled: May 28, 2020Publication date: September 17, 2020Inventors: Banqiu WU, Eli DAGAN
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Patent number: 10710358Abstract: Embodiments described herein generally relate to an apparatus and methods for removing a glue residue from a photomask. The glue residue may be exposed when a pellicle is removed from the photomask. Before a new pellicle can be adhered to the photomask, the glue residue may be removed. To remove the glue residue, a laser beam may be projected through a lens and focused on a surface of the glue residue. The glue residue may be ablated from the photomask by the laser beam.Type: GrantFiled: June 17, 2019Date of Patent: July 14, 2020Assignee: Applied Materials, Inc.Inventors: Banqiu Wu, Eli Dagan
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Publication number: 20200183268Abstract: Embodiments of the present disclosure generally provide apparatus and methods for removing an attachment feature utilized to hold a pellicle from a photomask. In one embodiment, an attachment feature removal apparatus for processing a photomask includes an attachment feature puller comprising an actuator, a clamp coupled to the actuator, the clamp adapted to grip an attachment feature, and a coil assembly disposed adjacent to the attachment feature.Type: ApplicationFiled: October 23, 2019Publication date: June 11, 2020Inventors: Banqiu WU, Eli DAGAN, Khalid MAKHAMREH, Bruce J. FENDER
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Publication number: 20200166834Abstract: Embodiments of the present disclosure generally relate to methods and apparatus for preparing a photomask for a lithography process. In one embodiment, a curing chamber is disclosed that includes an elevator adapted to receive a plurality of holder units. Each of the holder units comprise a holder, a clamp holding a photomask, one or more studs coupled to the photomask by an adhesive, and a spring coupled to each of the one or more studs.Type: ApplicationFiled: November 15, 2019Publication date: May 28, 2020Inventors: Banqiu WU, Eli DAGAN, Khalid MAKHAMREH, Bruce J. FENDER
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Publication number: 20200096860Abstract: Generally, examples described herein relate to systems and methods for processing a substrate, and more particularly, for removing an edge bead or other source of contamination from an edge of a substrate. An example is a processing system including a chamber, a substrate handler within the chamber, and a radiation generator within the chamber. The substrate handler is configured to secure a substrate. The substrate handler is operable to position an edge surface of the substrate such that radiation propagating from the radiation generator is directed to the edge surface of the substrate, and operable to position a periphery region of a deposit surface of the substrate that is perpendicular to and along the edge surface such that radiation propagating from the radiation generator is directed to the periphery region.Type: ApplicationFiled: August 30, 2019Publication date: March 26, 2020Inventors: Banqiu WU, Eli DAGAN
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Publication number: 20200098556Abstract: Embodiments described herein relate to oxygen cleaning chambers and a method of atomic oxygen cleaning a substrate. The oxygen cleaning chambers and method of atomic oxygen cleaning a substrate provide for generation of atomic oxygen in situ to oxidize materials on the surfaces of the substrate. The atomic oxygen cleaning chamber includes a chamber body, a chamber lid, a processing volume defined by the chamber body and the chamber lid, an UV radiation generator including one or more UV radiation sources, a pedestal disposed in the processing volume, and a gas distribution assembly. The pedestal has a processing position corresponding to a distance from the UV radiation generator to an upper surface of the pedestal. The gas distribution assembly is configured to be connected to an ozone generator to distribute ozone over the upper surface of the pedestal.Type: ApplicationFiled: August 30, 2019Publication date: March 26, 2020Inventors: Banqiu WU, Eli DAGAN
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Publication number: 20200057362Abstract: Embodiments described herein relate to apparatus and methods for removing one or more films from a photomask to create a black border and one or more pellicle anchor areas thereon. A photomask substrate is exposed by removing the one or more films in the black border and pellicle anchor areas. The black border prevents a pattern on the photomask from overlapping a pattern on a substrate being processed. To create the black border and pellicle anchor areas, a laser beam is projected through a lens and focused on a surface of the films. The films are ablated by the laser beam without damaging the photomask substrate.Type: ApplicationFiled: July 12, 2019Publication date: February 20, 2020Inventors: Banqiu WU, Eli DAGAN
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Publication number: 20200033740Abstract: Embodiments of the present disclosure generally include apparatus and methods for removing adhesive residues from a surface of a lithography mask. In particular, the processing systems described herein provide for the delivery of a solvent to a discrete plurality of locations on the surface of the lithography mask to facilitate the removal of adhesive residue therefrom. In one embodiment, a method of processing a substrate includes positioning the substrate on a substrate support of a processing system, sealing individual ones of a plurality of cleaning units to a surface of the substrate at a corresponding plurality of locations, heating a cleaning fluid to a temperature between about 50° C. and about 150° C., flowing the cleaning fluid to, and thereafter, from, the plurality of cleaning units, and exposing the surface of the substrate to the cleaning fluid at the plurality of locations.Type: ApplicationFiled: June 21, 2019Publication date: January 30, 2020Inventors: Banqiu WU, Eli DAGAN